ENYO-2276: Fixed dependency issue in package.json

Enyo-DCO-1.1-Signed-off-by: Yves Del Medico <yves.del-medico@hp.com>
ENYO-2276: Updated npmshrinkwrap.json

Enyo-DCO-1.1-Signed-off-by: Yves Del Medico <yves.del-medico@hp.com>
Merge pull request #271 from enyojs/ENYO-2276

ENYO-2276: Check node version matches package.json.